I just finished making this adaptive saxophone for a customer who only has one hand to operate the sax. To stay within budget restraints, I developed a novel key control systems, with dyneema cables. There is a one-legged stand that clicks on the sax, so it has a single support point on the ground. This allows the player maximum freedom to move around. There is also a side support so she can use her (barely functional) left hand to keep the horn in balance. It is a breeze to play. If you have any questions, fire away!
best regards from rainy Amsterdam!
Maarten Visser, www.flutelab.com
web site: http://www.flutelab.com/onehandsax.html